Portion of a LED light bulb



FIG. 1 is a perspective view of a first embodiment of a portion of a LED light bulb, showing my new design;

FIG. 2 is a front elevational view of a first embodiment of a portion of a LED light bulb, the back elevational view is a mirror image thereof;

FIG. 3 is a left elevational view thereof, the right elevational view is a mirror image thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a perspective view of a second embodiment of a portion of a LED light bulb, showing my new design;

FIG. 7 is a front elevational view of a second embodiment of a portion of a LED light bulb, the back, left and right elevational views are each a duplicate image thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a bottom plan view thereof.

The exterior glass and the threaded portion in FIGS. 1-9 are shown in broken lines for illustrative purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for a portion of a LED light bulb, as shown and described. 